Radiology Key

10.1055/b-0034-75774 2 Ventricles and Cisterns(Table 2.5 – Table 2.7) Table 2.5 Dilated ventricles Lesions CT Findings Comments Normal variant Mild ventricular enlargement can occur without associated cerebral or cerebellar abnormality….

10.1055/b-0034-75775 3 Lesions Involving the Meninges and SkullMeyers\, Steven P. The cranial and spinal meninges represent three concentric contiguous membranes (dura mater, arachnoid, and pia mater) surrounding the central nervous…

10.1055/b-0034-75770 1 Brain and Extra-axial Lesions(Table 1.7 – Table 1.8) Table 1.7 Abnormalities and lesions of the basal ganglia Lesions CT Findings Comments Neoplasms Astrocytoma Fig. 1.129a–c Low-grade astrocytoma: Focal…

10.1055/b-0034-75776 4 Vascular LesionsMeyers\, Steven P. Contrast-enhanced computed tomographic (CT) imaging is a useful imaging modality for evaluating normal and abnormal blood vessels. The appearance of blood vessels on contrast-enhanced…

10.1055/b-0034-75769 1 Brain and Extra-axial Lesions(Table 1.5 – Table 1.6) Table 1.5 Extra-axial lesions in the posterior cranial fossa (infratentorial) Lesions CT Findings Comments Neoplastic Metastatic tumor Fig. 1.94a, b…

10.1055/b-0034-75767 1 Brain and Extra-axial Lesions(Table 1.1 – Table 1.2) Table 1.1 Congenital malformations of the brain Lesions CT Findings Comments Disorders of diverticulation (formation of cerebral hemispheres and ventricles)…

10.1055/b-0034-75771 1 Brain and Extra-axial Lesions(Table 1.9 – Table 1.10) Table 1.9 Intracranial hemorrhage Lesions CT Findings Comments Hematoma Intra-axial hemorrhage in brain Attenuation of the hematoma depends on its…

10.1055/b-0034-75773 2 Ventricles and Cisterns(Table 2.1 – Table 2.4) Table 2.1 Lateral ventricles: common mass lesions Age Foramen of Monro Trigone and Atrium Lateral Ventricle, Body Adult Colloid cyst Cysticercosis…